./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e6f390-9f56-440b-b528-53f777aeec62/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e6f390-9f56-440b-b528-53f777aeec62/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e6f390-9f56-440b-b528-53f777aeec62/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e6f390-9f56-440b-b528-53f777aeec62/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e6f390-9f56-440b-b528-53f777aeec62/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e6f390-9f56-440b-b528-53f777aeec62/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:06:38,140 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:06:38,245 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e6f390-9f56-440b-b528-53f777aeec62/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:06:38,252 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:06:38,253 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:06:38,286 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:06:38,287 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:06:38,287 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:06:38,288 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:06:38,288 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:06:38,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:06:38,289 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:06:38,289 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:06:38,289 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:06:38,290 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:06:38,290 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:06:38,290 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:06:38,290 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:06:38,290 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:06:38,291 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:06:38,291 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:06:38,291 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:06:38,291 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:06:38,291 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:06:38,291 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:06:38,291 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:06:38,291 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:06:38,292 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:06:38,292 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:06:38,292 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:06:38,292 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:06:38,292 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:06:38,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:06:38,292 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:06:38,293 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:06:38,293 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:06:38,293 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:06:38,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:06:38,293 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:06:38,293 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:06:38,294 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:06:38,294 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:06:38,295 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:06:38,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:06:38,295 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:06:38,295 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:06:38,295 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:06:38,296 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:06:38,296 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e6f390-9f56-440b-b528-53f777aeec62/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 [2024-11-23 23:06:38,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:06:38,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:06:38,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:06:38,704 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:06:38,705 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:06:38,706 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e6f390-9f56-440b-b528-53f777aeec62/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i [2024-11-23 23:06:42,628 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e6f390-9f56-440b-b528-53f777aeec62/bin/uautomizer-verify-LYvppIcaGC/data/eb6e4b462/71dd460f2c3647ea97a6b31464a05dd7/FLAGe2785cc69 [2024-11-23 23:06:43,107 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:06:43,108 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e6f390-9f56-440b-b528-53f777aeec62/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i [2024-11-23 23:06:43,142 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e6f390-9f56-440b-b528-53f777aeec62/bin/uautomizer-verify-LYvppIcaGC/data/eb6e4b462/71dd460f2c3647ea97a6b31464a05dd7/FLAGe2785cc69 [2024-11-23 23:06:43,166 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e6f390-9f56-440b-b528-53f777aeec62/bin/uautomizer-verify-LYvppIcaGC/data/eb6e4b462/71dd460f2c3647ea97a6b31464a05dd7 [2024-11-23 23:06:43,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:06:43,172 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:06:43,173 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:06:43,173 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:06:43,180 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:06:43,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:06:43" (1/1) ... [2024-11-23 23:06:43,184 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@479e9755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:43, skipping insertion in model container [2024-11-23 23:06:43,185 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:06:43" (1/1) ... [2024-11-23 23:06:43,268 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:06:43,861 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e6f390-9f56-440b-b528-53f777aeec62/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i[47038,47051] [2024-11-23 23:06:43,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:06:43,935 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:06:43,996 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e6f390-9f56-440b-b528-53f777aeec62/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i[47038,47051] [2024-11-23 23:06:44,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:06:44,094 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:06:44,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:44 WrapperNode [2024-11-23 23:06:44,095 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:06:44,096 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:06:44,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:06:44,097 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:06:44,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:44" (1/1) ... [2024-11-23 23:06:44,140 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:44" (1/1) ... [2024-11-23 23:06:44,193 INFO L138 Inliner]: procedures = 279, calls = 67, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 212 [2024-11-23 23:06:44,196 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:06:44,197 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:06:44,197 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:06:44,197 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:06:44,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:44" (1/1) ... [2024-11-23 23:06:44,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:44" (1/1) ... [2024-11-23 23:06:44,220 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:44" (1/1) ... [2024-11-23 23:06:44,267 INFO L175 MemorySlicer]: Split 35 memory accesses to 7 slices as follows [2, 2, 5, 5, 5, 2, 14]. 40 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 5, 5, 5, 0, 0]. The 10 writes are split as follows [0, 1, 0, 0, 0, 1, 8]. [2024-11-23 23:06:44,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:44" (1/1) ... [2024-11-23 23:06:44,268 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:44" (1/1) ... [2024-11-23 23:06:44,293 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:44" (1/1) ... [2024-11-23 23:06:44,298 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:44" (1/1) ... [2024-11-23 23:06:44,302 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:44" (1/1) ... [2024-11-23 23:06:44,306 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:44" (1/1) ... [2024-11-23 23:06:44,308 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:44" (1/1) ... [2024-11-23 23:06:44,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:06:44,314 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:06:44,314 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:06:44,314 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:06:44,316 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:44" (1/1) ... [2024-11-23 23:06:44,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:06:44,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e6f390-9f56-440b-b528-53f777aeec62/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:06:44,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e6f390-9f56-440b-b528-53f777aeec62/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:06:44,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e6f390-9f56-440b-b528-53f777aeec62/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:06:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 23:06:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 23:06:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 23:06:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 23:06:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-23 23:06:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-23 23:06:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-23 23:06:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-23 23:06:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-23 23:06:44,419 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-23 23:06:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 23:06:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-23 23:06:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 23:06:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 23:06:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 23:06:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 23:06:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 23:06:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-23 23:06:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-23 23:06:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-23 23:06:44,420 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-23 23:06:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 23:06:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 23:06:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 23:06:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 23:06:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 23:06:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 23:06:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-23 23:06:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-23 23:06:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 23:06:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:06:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-23 23:06:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-23 23:06:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-23 23:06:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-23 23:06:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-23 23:06:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-23 23:06:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-23 23:06:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:06:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:06:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 23:06:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 23:06:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 23:06:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 23:06:44,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-23 23:06:44,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:06:44,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:06:44,427 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 23:06:44,773 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:06:44,776 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:06:45,430 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 23:06:45,431 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:06:45,869 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:06:45,870 INFO L312 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-23 23:06:45,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:06:45 BoogieIcfgContainer [2024-11-23 23:06:45,870 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:06:45,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:06:45,873 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:06:45,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:06:45,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:06:43" (1/3) ... [2024-11-23 23:06:45,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@553412f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:06:45, skipping insertion in model container [2024-11-23 23:06:45,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:44" (2/3) ... [2024-11-23 23:06:45,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@553412f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:06:45, skipping insertion in model container [2024-11-23 23:06:45,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:06:45" (3/3) ... [2024-11-23 23:06:45,885 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_82-list_racefree.i [2024-11-23 23:06:45,909 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:06:45,913 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_82-list_racefree.i that has 3 procedures, 56 locations, 1 initial locations, 10 loop locations, and 1 error locations. [2024-11-23 23:06:45,914 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 23:06:46,046 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-23 23:06:46,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 75 transitions, 170 flow [2024-11-23 23:06:46,257 INFO L124 PetriNetUnfolderBase]: 36/155 cut-off events. [2024-11-23 23:06:46,260 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-23 23:06:46,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 155 events. 36/155 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 571 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 80. Up to 8 conditions per place. [2024-11-23 23:06:46,269 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 75 transitions, 170 flow [2024-11-23 23:06:46,275 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 73 transitions, 160 flow [2024-11-23 23:06:46,285 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:06:46,300 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@229422b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:06:46,300 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-23 23:06:46,314 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 23:06:46,315 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2024-11-23 23:06:46,315 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 23:06:46,315 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:06:46,316 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-23 23:06:46,317 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-23 23:06:46,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:06:46,324 INFO L85 PathProgramCache]: Analyzing trace with hash -7493217, now seen corresponding path program 1 times [2024-11-23 23:06:46,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:06:46,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483288257] [2024-11-23 23:06:46,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:06:46,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:06:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:06:46,589 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:06:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:06:46,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 23:06:46,723 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 23:06:46,725 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2024-11-23 23:06:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2024-11-23 23:06:46,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-23 23:06:46,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-11-23 23:06:46,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:06:46,734 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-23 23:06:46,743 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-23 23:06:46,743 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-23 23:06:46,919 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-23 23:06:46,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 135 transitions, 314 flow [2024-11-23 23:06:47,138 INFO L124 PetriNetUnfolderBase]: 141/507 cut-off events. [2024-11-23 23:06:47,138 INFO L125 PetriNetUnfolderBase]: For 72/86 co-relation queries the response was YES. [2024-11-23 23:06:47,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 507 events. 141/507 cut-off events. For 72/86 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2890 event pairs, 1 based on Foata normal form. 0/365 useless extension candidates. Maximal degree in co-relation 338. Up to 32 conditions per place. [2024-11-23 23:06:47,151 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 135 transitions, 314 flow [2024-11-23 23:06:47,159 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 135 transitions, 314 flow [2024-11-23 23:06:47,161 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:06:47,162 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@229422b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:06:47,162 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-23 23:06:47,178 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 23:06:47,178 INFO L124 PetriNetUnfolderBase]: 2/52 cut-off events. [2024-11-23 23:06:47,178 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2024-11-23 23:06:47,179 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:06:47,179 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-11-23 23:06:47,179 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 23:06:47,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:06:47,180 INFO L85 PathProgramCache]: Analyzing trace with hash -911019052, now seen corresponding path program 1 times [2024-11-23 23:06:47,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:06:47,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156406666] [2024-11-23 23:06:47,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:06:47,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:06:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:06:47,299 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:06:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:06:47,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 23:06:47,407 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 23:06:47,407 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-23 23:06:47,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-23 23:06:47,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-23 23:06:47,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-11-23 23:06:47,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-11-23 23:06:47,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:06:47,412 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-23 23:06:47,414 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-23 23:06:47,414 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-23 23:06:47,598 INFO L143 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-11-23 23:06:47,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 195 transitions, 462 flow [2024-11-23 23:06:48,182 INFO L124 PetriNetUnfolderBase]: 504/1445 cut-off events. [2024-11-23 23:06:48,185 INFO L125 PetriNetUnfolderBase]: For 419/488 co-relation queries the response was YES. [2024-11-23 23:06:48,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1881 conditions, 1445 events. 504/1445 cut-off events. For 419/488 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 9897 event pairs, 41 based on Foata normal form. 0/1091 useless extension candidates. Maximal degree in co-relation 1052. Up to 192 conditions per place. [2024-11-23 23:06:48,215 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 195 transitions, 462 flow [2024-11-23 23:06:48,251 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 154 places, 195 transitions, 462 flow [2024-11-23 23:06:48,253 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:06:48,255 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@229422b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:06:48,257 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-23 23:06:48,293 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 23:06:48,294 INFO L124 PetriNetUnfolderBase]: 6/103 cut-off events. [2024-11-23 23:06:48,297 INFO L125 PetriNetUnfolderBase]: For 20/22 co-relation queries the response was YES. [2024-11-23 23:06:48,298 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:06:48,298 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2024-11-23 23:06:48,299 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-23 23:06:48,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:06:48,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1346167390, now seen corresponding path program 1 times [2024-11-23 23:06:48,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:06:48,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646150510] [2024-11-23 23:06:48,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:06:48,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:06:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:06:48,404 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:06:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:06:48,500 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 23:06:48,500 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 23:06:48,500 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-23 23:06:48,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-23 23:06:48,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-23 23:06:48,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2024-11-23 23:06:48,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-11-23 23:06:48,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-11-23 23:06:48,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:06:48,506 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-23 23:06:48,506 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-23 23:06:48,507 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-23 23:06:48,720 INFO L143 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2024-11-23 23:06:48,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 200 places, 255 transitions, 614 flow [2024-11-23 23:06:50,699 INFO L124 PetriNetUnfolderBase]: 2097/4697 cut-off events. [2024-11-23 23:06:50,700 INFO L125 PetriNetUnfolderBase]: For 2144/2335 co-relation queries the response was YES. [2024-11-23 23:06:50,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6838 conditions, 4697 events. 2097/4697 cut-off events. For 2144/2335 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 34988 event pairs, 399 based on Foata normal form. 0/3790 useless extension candidates. Maximal degree in co-relation 3517. Up to 1024 conditions per place. [2024-11-23 23:06:50,931 INFO L82 GeneralOperation]: Start removeDead. Operand has 200 places, 255 transitions, 614 flow [2024-11-23 23:06:51,041 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 255 transitions, 614 flow [2024-11-23 23:06:51,043 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:06:51,043 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@229422b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:06:51,043 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-23 23:06:51,078 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 23:06:51,079 INFO L124 PetriNetUnfolderBase]: 15/183 cut-off events. [2024-11-23 23:06:51,079 INFO L125 PetriNetUnfolderBase]: For 51/54 co-relation queries the response was YES. [2024-11-23 23:06:51,079 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:06:51,079 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2024-11-23 23:06:51,079 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:06:51,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:06:51,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1774684833, now seen corresponding path program 1 times [2024-11-23 23:06:51,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:06:51,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866964767] [2024-11-23 23:06:51,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:06:51,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:06:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:06:51,173 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:06:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:06:51,257 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 23:06:51,257 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 23:06:51,257 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-23 23:06:51,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2024-11-23 23:06:51,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-23 23:06:51,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2024-11-23 23:06:51,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2024-11-23 23:06:51,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2024-11-23 23:06:51,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-11-23 23:06:51,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:06:51,263 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-23 23:06:51,263 WARN L246 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-23 23:06:51,263 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-23 23:06:51,450 INFO L143 ThreadInstanceAdder]: Constructed 20 joinOtherThreadTransitions. [2024-11-23 23:06:51,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 246 places, 315 transitions, 770 flow [2024-11-23 23:06:58,521 INFO L124 PetriNetUnfolderBase]: 9672/18039 cut-off events. [2024-11-23 23:06:58,521 INFO L125 PetriNetUnfolderBase]: For 10450/10789 co-relation queries the response was YES. [2024-11-23 23:06:58,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28430 conditions, 18039 events. 9672/18039 cut-off events. For 10450/10789 co-relation queries the response was YES. Maximal size of possible extension queue 570. Compared 141454 event pairs, 2148 based on Foata normal form. 0/15403 useless extension candidates. Maximal degree in co-relation 13784. Up to 5120 conditions per place. [2024-11-23 23:06:58,965 INFO L82 GeneralOperation]: Start removeDead. Operand has 246 places, 315 transitions, 770 flow [2024-11-23 23:06:59,577 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 246 places, 315 transitions, 770 flow [2024-11-23 23:06:59,578 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:06:59,579 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@229422b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:06:59,579 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-23 23:06:59,623 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 23:06:59,623 INFO L124 PetriNetUnfolderBase]: 38/318 cut-off events. [2024-11-23 23:06:59,623 INFO L125 PetriNetUnfolderBase]: For 114/138 co-relation queries the response was YES. [2024-11-23 23:06:59,623 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:06:59,623 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:06:59,624 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-23 23:06:59,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:06:59,625 INFO L85 PathProgramCache]: Analyzing trace with hash -2011868131, now seen corresponding path program 1 times [2024-11-23 23:06:59,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:06:59,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649523499] [2024-11-23 23:06:59,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:06:59,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:06:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:06:59,719 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:06:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:06:59,800 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 23:06:59,801 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 23:06:59,801 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-23 23:06:59,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2024-11-23 23:06:59,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 8 remaining) [2024-11-23 23:06:59,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2024-11-23 23:06:59,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2024-11-23 23:06:59,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2024-11-23 23:06:59,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 8 remaining) [2024-11-23 23:06:59,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 8 remaining) [2024-11-23 23:06:59,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:06:59,806 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-23 23:06:59,807 WARN L246 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-23 23:06:59,807 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2024-11-23 23:07:00,015 INFO L143 ThreadInstanceAdder]: Constructed 24 joinOtherThreadTransitions. [2024-11-23 23:07:00,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 375 transitions, 930 flow [2024-11-23 23:07:30,966 INFO L124 PetriNetUnfolderBase]: 45693/76031 cut-off events. [2024-11-23 23:07:30,966 INFO L125 PetriNetUnfolderBase]: For 49552/50104 co-relation queries the response was YES. [2024-11-23 23:07:33,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125412 conditions, 76031 events. 45693/76031 cut-off events. For 49552/50104 co-relation queries the response was YES. Maximal size of possible extension queue 2101. Compared 647411 event pairs, 12465 based on Foata normal form. 0/67003 useless extension candidates. Maximal degree in co-relation 59504. Up to 24576 conditions per place. [2024-11-23 23:07:33,586 INFO L82 GeneralOperation]: Start removeDead. Operand has 292 places, 375 transitions, 930 flow [2024-11-23 23:07:36,170 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 292 places, 375 transitions, 930 flow [2024-11-23 23:07:36,171 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:07:36,172 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@229422b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:07:36,172 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-23 23:07:36,210 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 23:07:36,210 INFO L124 PetriNetUnfolderBase]: 42/348 cut-off events. [2024-11-23 23:07:36,210 INFO L125 PetriNetUnfolderBase]: For 145/188 co-relation queries the response was YES. [2024-11-23 23:07:36,210 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:07:36,210 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:36,211 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-23 23:07:36,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:36,211 INFO L85 PathProgramCache]: Analyzing trace with hash 2099807828, now seen corresponding path program 1 times [2024-11-23 23:07:36,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:36,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977779372] [2024-11-23 23:07:36,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:36,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:36,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:36,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:36,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:36,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977779372] [2024-11-23 23:07:36,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977779372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:36,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:36,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:07:36,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219008044] [2024-11-23 23:07:36,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:36,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:07:36,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:36,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:07:36,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:07:36,427 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 375 [2024-11-23 23:07:36,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 375 transitions, 930 flow. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:36,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:07:36,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 375 [2024-11-23 23:07:36,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand